Google Fusion Table (FT) is an experimental data visualization web application that makes large data tables meaningful. Combine with Google Maps service, FT can be used for many application. Since I am working for cellular telecommunication, I have made some experiments using FT. One of them is visualize GSM network over Google Maps. Perhaps this might be illegal because the data is not public. Click on the image below to redirect your browser into my experimental page. Or you can also click in this link : http://mappertest.blogspot.com/2012/07/jakarta-network-part-of-it.html
Click at any cell to view the cell information. You can see Cellname there.
Try to put the Cellname into the search box and hit Go! button. You can see the Neighbor lines are now on the maps.